Reproductive performance and progeny testing of androgenetic clones of widow tetra, Gymnocorymbus ternetzi Boulenger (Characidae) generated using cryopreserved sperm

Abstract

Production of androgenetic clones using preserved sperm is advantageous in resurrecting a lost population and germplasm conservation. Generation of androgenetic clones to produce 100% males in economically important species is a desirable practice in aquaculture. However, reasons for failure of the clones to generate all male population remains unknown. We investigated reproductive performances of androgenetic widow tetra, Gymnocorymbus ternetzi generated using cryopreserved albino widow tetra (WT) sperm and their ability to generate all male population were assessed. Survival of albino androgenotes at hatching and sexual maturity was 11% and 8%, respectively. Gonado-somatic-index (GSI) and fecundity of F0 androgenetic females (X2X2) was significantly (P